whether or not they want to join a union and pay those union dues. and they say it also grows jobs. >> it actually makes unions more accountable and makes them more responsive to their members because now the unions can't take them for granted. remember, right to work doesn't affect collective bargaining in any other way except for take away the union's ability to fire a worker for not paying them. they can still bargain over hours, wages and working conditions. >> reporter: so the vote expected to happen tomorrow, starting at 10:00 a.m. the house and the senate will each vote on each other's measures. also, demonstrations expected to begin. the opening salvo happening 9:00 a.m., down this street right here. thousands are expected to march, starting here, all the way up to lansing city hall. that would be just the beginning of the day. wolf. >> alison on the scene for us, thank you. the president's taking a political risk by getting into michigan's union fight at the same time he's locked in a major battle in washington over raising ta spending cuts